The programme allows the force to share critical information with members of the public by marking tweets as alerts.
The force will only send people a Twitter Alert in emergency or crisis situations to help keep the public safe.
To sign up to receive critical alerts from Notts Police visit www.twitter.com/nottspolice/alerts
Once signed up, people will receive a text message notifying them of a critical information tweet.
If they have an iPhone or Android mobile phone user, they can also get a push notification direct to your mobile.